20460166 has 4 divisors (see below), whose sum is σ = 30690252. Its totient is φ = 10230082.

The previous prime is 20460157. The next prime is 20460199. The reversal of 20460166 is 66106402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20460166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115040 + ... + 5115043.

It is an arithmetic number, because the mean of its divisors is an integer number (7672563).

Almost surely, 2^20460166 is an apocalyptic number.

20460166 is a deficient number, since it is larger than the sum of its proper divisors (10230086).

20460166 is a wasteful number, since it uses less digits than its factorization.

20460166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230085.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20460166 is about 4523.2915006663. The cubic root of 20460166 is about 273.5078009020.

Adding to 20460166 its reverse (66106402), we get a palindrome (86566568).

The spelling of 20460166 in words is "twenty million, four hundred sixty thousand, one hundred sixty-six".